我正在使用SetWindowsHookExA(WH_KEYBOARD_LL, HookCallback, GetModuleHandleA(NULL), 0);
设置用于捕获击键的全局挂钩,但是结果很奇怪。
当我按下“特殊”键(例如“ Enter”,“ Tab”,“ Shift”,“ Ctrl”)和其他具有虚拟键代码的键时,可以执行回调函数,但是当我按下时,它无法捕获键击常规字母和数字。
我对此感到困惑,有人可以告诉我原因吗?
#include <Windows.h>
#include <iostream>
using namespace std;
HHOOK keyboardHook = 0;
LRESULT CALLBACK HookCallback(int code, WPARAM wParam, LPARAM lParam)
{
KBDLLHOOKSTRUCT *ks = (KBDLLHOOKSTRUCT*)lParam;
cout<< "[TEST] " << ks->vkCode << endl;
return CallNextHookEx(0, code, wParam, lParam);
}
int main()
{
keyboardHook = SetWindowsHookExA(WH_KEYBOARD_LL, HookCallback, GetModuleHandleA(NULL), 0);
if (keyboardHook == 0)
{
cout << "failed" << endl;
return -1;
}
cout << "ok" << endl;
MSG msg;
while(GetMessage(&msg, NULL, 0, 0)){
TranslateMessage(&msg);
DispatchMessage(&msg);
}
UnhookWindowsHookEx(keyboardHook);
return 0;
}